Pith Number

pith:WA7APRV2

pith:2022:WA7APRV2HDOWXF6A2VXZHKATLM

not attested not anchored not stored refs pending

Hochschild homology, and a persistent approach via connectivity digraphs

Henri Riihim\"aki, Luigi Caputi

arxiv:2204.00462 v1 · 2022-04-01 · math.AT · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WA7APRV2HDOWXF6A2VXZHKATLM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Towards a Quantitative Theory of Digraph-Based Complexes and its Applications in Brain Network Analysis

Receipt and verification

First computed	2026-07-05T06:41:43.873597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b03e07c6ba38dd6b97c0d56f93a8135b23deb1fe95cfa44eb481e88ea5444c73

Aliases

arxiv: 2204.00462 · arxiv_version: 2204.00462v1 · doi: 10.48550/arxiv.2204.00462 · pith_short_12: WA7APRV2HDOW · pith_short_16: WA7APRV2HDOWXF6A · pith_short_8: WA7APRV2

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WA7APRV2HDOWXF6A2VXZHKATLM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b03e07c6ba38dd6b97c0d56f93a8135b23deb1fe95cfa44eb481e88ea5444c73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a8b249c8de53443595c66b9718e45588bfb74aace800f8a89db7e2b28b4d6b15",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2022-04-01T14:18:40Z",
    "title_canon_sha256": "a66212624dbc4cd7f4848f0e45f6b1e73f859b8761f89dfe257eb42285b9b20d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.00462",
    "kind": "arxiv",
    "version": 1
  }
}